Active transport and mediated diffusion of glucose and other monosaccharides in Endomyces magnusii.
After growth on sucrose or glucose, Endomyces magnusii possess a monosaccharide uptake which resembles that of Saccharomyces cerevisiae (a high KT of uptake, preference for alpha-anomers of D-xylose and D-glucose, enhanced uptake during anaerobiosis, attainment of a diffusion equilibrium). The uptake is inhibited by other monosaccharides and especially strongly by D-galactose. In the absence of high concentrations of metabolizable sugars. E. magnusii develops a capacity to accumulate 3-O-methyl-D-glucose and D-xylose against a concentration gradient the new system displaying a high affinity for glucose (KT less than 0.1 mM), repression by glucose, mannose or galactose. Cycloheximide (0.2%) blocks the formation of the active system.
D001203:Ascomycota / Q000378:metabolism*; D005690:Galactose / Q000494:pharmacology; D005947:Glucose / Q000378:metabolism*; D008358:Mannose / Q000494:pharmacology; D009005:Monosaccharides / Q000378:metabolism*; D012266:Ribose / Q000494:pharmacology; D004718:Saccharomycetales / Q000378:metabolism*; D013013:Sorbose / Q000494:pharmacology; D014994:Xylose / Q000378:metabolism / Q000494:pharmacology
D009005:Monosaccharides; D012266:Ribose; D014994:Xylose; D005947:Glucose; D013013:Sorbose; D008358:Mannose; D005690:Galactose